APA (7th ed.) Citation

Duncan, S., Scott, S., & Duncan, C. (1994). SMALLPOX EPIDEMICS IN CITIES IN BRITAIN.

Chicago Style (17th ed.) Citation

Duncan, S., S. Scott, and C. Duncan. SMALLPOX EPIDEMICS IN CITIES IN BRITAIN. 1994.

MLA (9th ed.) Citation

Duncan, S., et al. SMALLPOX EPIDEMICS IN CITIES IN BRITAIN. 1994.